.ude-box{
    width: 100%;
    height: 1000px;
}
.ude-top{
    width: 100%;
    height: 350px;

}
.ude-top h2{
    text-align: center;
    line-height: 100px;
}
.ude-con{
    width: 200px;
    height: 200px;
    margin-left: 16%;
    margin-top: 3%;
}
.ude-con span{
    display: block;
    font-size: 15px;
    line-height: 30px;
}
.ude-lun{
    width: 70%;
    height: 650px;
    margin: 30px auto;
}
.ude-nav{
    width: 100%;
    height: 50px;
    background: #999;
    margin-top: 5%;
}
.ude-nav h4{
  margin-left: 88%;
    line-height: 50px;
}